Data conversion system



Sept. 16, 1958 Mc| FRbTHINGHAM 2,852,764

DATA CONVERSIBN SYSTEM Filed June 25, 1953 22 Sheets-Sheet 1 F/g.

' COMPARING nn) 7 and c I TRANSMITTER CONVERTER 7 CONVERTER CONTROL RE EVER Z2 CIRCUIT F/ T g? 52 53 a -52 55 3/ 11? mu 33111 II All m 45 I 1'0COM PARING and CONTROL CIRCUIT Sept. 16, 1958 D. M L. FROTHINGHAM DATACONVERSION SYSTEM Fi-ied June 25, 1955 22 Sheets-Sheet 3 :Iumnur 937-;

Sept. 16, 1958 D. MOL. FROTHINGHAM DATA CONVERSION SYSTEM 22Sheets-Sheet 5 Filed June 25. 1953 Q a 2 2 T 5 5 am 5 T a. 3 s8 3 @N 9&ma w Q .3 5 $2 5 a M f u I H... I I M -3 M Q I \R m lllll H H \I 1 P I II I F ||l-| I I 1 I F rr o I I M H :Q. Q I m NQ RN M l Q 9% SQ 3 RN \R WNW 3 5 Q Q I I Q \\N 5 I I I .8 m Eh I v o J .I2 3 J1. 3

Sept. 16, 1958 D. M L. FROTHINGHAM DATA CONVERSION SYSTEM 22Sheets-Sheet 6 Filed June 25, 1953 lli P 1958 D. MOL. FROTHINGHAM2,852,764

DATA CONVERSION SYSTEM Filed June 25, 1953 22 Sheets-Sheet '7 Sept. 16,1958 D. MCL. FROTHINGHAM DATA CONVERSION SYSTEM 22 Sheets-Sheet 8 FiledJune 25, 1953 Sept. 16, 1958 D. McL, FROTHINGHAM 2,852,74-

DATA CONVERSION SYSTEM Filed June 25, 1953 22 Sheets-Sheet 9 F/ ZZ; w3/7 5/5 Sept. 16, 1958 D. M L. FROTHINGHAM 2,852,764

DATA CONVERSION SYSTEM 22 Sheets-Sheet 10 Filed June 25, 1953 QQQM km gmh kwhh Eva 5R usb mww so m I XQQM uQQ 13% kg 33% 5% QQQQ SR vNmQ QR $33RQ 3Q RQRR 5Q QQ imvbfi LRQ 95 EQBQ u n u 4 n I l m KR $9 I 3% mww 9% 3%M @Q o 2 i Q l a Q I 3 m u RH YQM. h vfihy SQ 3mm 3mm 1% xwb m LRR 13%KR $5 LS8 wash M98 DATA CONVERSION SYSTEM 22 Sheets-Sheet 11 Filed June25, 1953 .KNR

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$3 ufih Hugh SW wa RR Swn k5 wwwt n3 XRK Maw QR \fivaw EM QM \LRRM Qqhavhahh m QR 1 QNR an l fi QR QR W $9 nub mi g -Q 1 Few Sam M R h 8% 3%QR L "8% q wmhfi qqwwh kwhm 5R 5% 8% KMWM Sept 16, 1958 D. MCL.FROTHINGHAM 2,852,754

DATA CONVERSION SYSTEM Filed June 25, 1953 22 Sheets-Sheet l2 Sept. 16,1958 D. MCL. FROTHINGHAM 2,852,764

DATA CONVERSION SYSTEM Filed June 25, 1955 22 Sheets-Sheet 1s 1 mg?figfi m L ,1 n i 3 m n mm mm. m m ufiv q mm mm mm u n U \wv mm mm mm mmm \Nv mm mm mm mm %..\\H uv|\\\ mm mm n mm W" mm "w I- I I- m- 9k m 5 gmMS km NW My QM Qv 3 \R Qv Q W 3 a? n Sept. 16, 1958 D. MQL. FROTHINGHAM2,852,764

DATA CONVERSION SYSTEM 22 Sheets-Sheet 14 Filed June 25. 1953 Sept. 16,1958 D. MCL; FROTHINGHAM 2,

I DATA CONVERSION SYSTEM Filed June 25, 1953 22 Sheets-Sheet 16 Sept.16, 1958 0'. MOL. FROTHINGHAM 2,852,764

DATA CONVERSION SYSTEM P 1958 D. MCL. FROTHINGHAM 2,852,764

DATA CONVERSION SYSTEM Filed June 25, 1953 22 Sheets-Sheet 1s 225 A B ir B-H/L wa 1 q: 270

p -1 1958 D. M L. FROTHINGHAM 2,852,764

- DATA CONVERSION SYSTEM Filed June 25, 1953 22 Sheets-Sheet 19 626Pulse60riem1or6j/ 6/7 6/ 6/4- Fumn Pulse Genemiov 0 Sforaqe C ircuH-

